Re-decorating a tree decorated tree with support values

[donovan-h-parks]

Some undesired behaviour can occur when trying to re-decorate a tree that already contains internal labels. This seems especially true when nodes have support values. We have observed that redecorated nodes loss their support values. It is also unclear if the pre-existing labels are removed or retained. Stripping pre-existing internal labels, while retaining the support values, allows a tree to be cleanly re-decorated. Perhaps a check for pre-existing labels would be good along with a new function for stripping pre-existing labels.

[wasade]

Unfortunately, this was a bit difficult to resolve previously as there
isn't a standard way to represent metadata on internal nodes. I like the
check + function idea

On Mon, Feb 15, 2016 at 11:30 AM, Donovan Parks notifications@github.com
wrote:

Some undesired behaviour can occur when trying to re-decorate a tree that
already contains internal labels. This seems especially true when nodes
have support values. We have observed that redecorated nodes loss their
support values. It is also unclear if the pre-existing labels are removed
or retained. Stripping pre-existing internal labels, while retaining the
support values, allows a tree to be cleanly re-decorated. Perhaps a check
for pre-existing labels would be good along with a new function for
stripping pre-existing labels.

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